2111021212 has 6 divisors (see below), whose sum is σ = 3694287128. Its totient is φ = 1055510604.

The previous prime is 2111021147. The next prime is 2111021219. The reversal of 2111021212 is 2121201112.

It is a junction number, because it is equal to n+sod(n) for n = 2111021192 and 2111021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111021219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263877648 + ... + 263877655.

Almost surely, 2^2111021212 is an apocalyptic number.

It is an amenable number.

2111021212 is a deficient number, since it is larger than the sum of its proper divisors (1583265916).

2111021212 is a wasteful number, since it uses less digits than its factorization.

2111021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527755307 (or 527755305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2111021212 is about 45945.8508681687. The cubic root of 2111021212 is about 1282.8155008602.

Adding to 2111021212 its reverse (2121201112), we get a palindrome (4232222324).

The spelling of 2111021212 in words is "two billion, one hundred eleven million, twenty-one thousand, two hundred twelve".